Download HOMEWORK 2

NAME:
PERIOD:
HOMEWORK 2.4 (2014-2015)
Metric Prefixes - Density
a. Review pp 116 – 121; pp 142 - 146.
b. Review your class notes
c. Answer/solve the following:
1. For each of the following commonly used measurements, indicate its symbol.
a. _______ milliliter
e. _______ milligram
i. _______ liter
b. _______ centimeter
f. _______ kilogram
j. _______ millimeter
c. _______ kilometer
g. _______ gram
k. _______ meter
d. _______ millisecond
h. _______ microgram
l. _______ nanometer
2. A piece of tin has a mass of 14.46g. It occupies a volume of 2.00 mL. Calculate the density of the tin.
3. A piece of lead has a mass of 22.7g. It occupies a volume of 2.00 mL. Calculate the density of the lead.
4. The density of chromium is 7.20 g/mL. Calculate the volume of a piece of chromium whose
mass is 31.5g.
5. The density of silver is 10.5 g/mL. Calculate the volume of a piece of silver whose
mass is 31.5g.
6. A sample of platinum occupies a volume of 10.0 mL. The density of the platinum is 21.41 g/mL.
Determine the mass of the platinum.
OVER
7. A sample of iron occupies a volume of 10.0 mL. The density of iron is 7.90 g/mL. Determine the mass
of the iron.
8. Name the laboratory method used to determine the volume of an irregularly shaped solid.
9. In addition to the above method, describe the other method for determining the volume of a solid having
regular, measurable dimensions.
10. Describe the laboratory method used to determine the density of a liquid.
11. Which would have the greater density, a large sheet of aluminum metal or small pellets of aluminum
metal? Why?
12. A student is trying to determine whether her necklace is pure silver. The mass of the necklace is
199.0 g. She places the necklace is a graduated cylinder of water and notes that the water level rises from
31.4 mL to 51.9 mL. Calculate the density of the necklace and determine whether it is pure silver. The
density of silver is 10.5 g/mL.